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3 years ago

HELP OR I WILL EAT ALL YOUR COOKIES

Mathematics

1 answer:

pentagon [3]3 years ago

3 0

Answer:

i think it is a because it makes sense and also you wouldnt

Step-by-step explanation:

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Heather and her family are going to the grand opening of a new amusement park. There is a special price on tickets this weekend.

Likurg_2 [28]

56 + 16.80 = 72.80!!!!!!!!!!!!!

4 0

3 years ago

Read 2 more answers

Michael had 3 times as many mangoes as Junior. After eating 8 mangoes. Michael had

jolli1 [7]

Answer:

Michael: 24

Junior: 8

Step-by-step explanation:

8 is a multiple of 24, meaning if you ate 1/3 of 24 you get 16, which is doubled 8.

4 0

3 years ago

Gravel is being dumped from a conveyor belt at a rate of 20 ft3 /min and its coarseness is such that it forms a pile in the shap

pantera1 [17]

Answer:

The height of the pile is increasing at the rate of $\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

Step-by-step explanation:

Given that :

Gravel is being dumped from a conveyor belt at a rate of 20 ft³ /min

i.e $\dfrac{dV}{dt}= 20 \ ft^3/min$

we know that radius r is always twice the diameter d

i.e d = 2r

Given that :

the shape of a cone whose base diameter and height are always equal.

then d = h = 2r

h = 2r

r = h/2

The volume of a cone can be given by the formula:

$V = \dfrac{\pi r^2 h}{3}$

$V = \dfrac{\pi (h/2)^2 h}{3}$

$V = \dfrac{1}{12} \pi h^3$

$V = \dfrac{ \pi h^3}{12}$

Taking the differentiation of volume V with respect to time t; we have:

$\dfrac{dV}{dt }= (\dfrac{d}{dh}(\dfrac{\pi h^3}{12})) \times \dfrac{dh}{dt}$

$\dfrac{dV}{dt }= (\dfrac{\pi h^2}{4} ) \times \dfrac{dh}{dt}$

we know that:

$\dfrac{dV}{dt}= 20 \ ft^3/min$

So;we have:

$20= (\dfrac{\pi (15)^2}{4} ) \times \dfrac{dh}{dt}$

$20= 56.25 \pi \times \dfrac{dh}{dt}$

$\mathbf{\dfrac{dh}{dt}= \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

The height of the pile is increasing at the rate of $\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}$

8 0

3 years ago

What is the mode for the set of data? 6,7,10,12,12,13 10 12 13 11

KonstantinChe [14]

12
because it is the only number that appears more than once which is basically the definition of mode.

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3 years ago

Need help with circle measurements in Geometry.

Ymorist [56]

I got 0.999 which is 999/1000

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3 years ago